| Niriidon Street | 19014 | Rest of Attica | Attica |
| Niriidon Street | 19500 | Rest of Attica | Attica |
| Niriidon Street | 13344 | Rest of Attica | Attica |
| Niska Georgiou Street | 19011 | Rest of Attica | Attica |
| Nisou Street | 19100 | Rest of Attica | Attica |
| Nithavris Street | 19001 | Rest of Attica | Attica |
| Notara Street | 19015 | Rest of Attica | Attica |
| Notara Street | 19001 | Rest of Attica | Attica |
| Noufaron Street | 13343 | Rest of Attica | Attica |
| Ntasi Spyrou Street | 19014 | Rest of Attica | Attica |
| Ntelakroua Ezen Street | 13343 | Rest of Attica | Attica |
| Nychtolouloudon Street | 13343 | Rest of Attica | Attica |
| Nymfaias Street | 13341 | Rest of Attica | Attica |
| Nymfon Street | 19014 | Rest of Attica | Attica |
| Oaseos Street | 19300 | Rest of Attica | Attica |
| Odysseos Street | 19100 | Rest of Attica | Attica |
| Odysseos Street | 19600 | Rest of Attica | Attica |
| Odysseos Street | 13344 | Rest of Attica | Attica |
| Odysseos Street | 19014 | Rest of Attica | Attica |
| Oidipodos Street | 19012 | Rest of Attica | Attica |
| Oidipodos Street | 19008 | Rest of Attica | Attica |
| Oidipodos Street | 19012 | Rest of Attica | Attica |
| Oikonomou Antoniou Street | 13343 | Rest of Attica | Attica |
| Oikonomou G. Street | 19014 | Rest of Attica | Attica |
| Oikonomou Sp. Street | 19014 | Rest of Attica | Attica |
| Oinois - Dervenochorion Road | 19600 | Rest of Attica | Attica |
| Oinois - Dervenochorion Road | 19012 | Rest of Attica | Attica |
| Oinois Street | 19100 | Rest of Attica | Attica |
| Oinois Street | 13341 | Rest of Attica | Attica |
| Okeanidon Street | 19015 | Rest of Attica | Attica |
| Okeanidon Street | 19014 | Rest of Attica | Attica |
| Okeanidon Street | 19200 | Rest of Attica | Attica |
| Okeanidos Street | 19015 | Rest of Attica | Attica |
| Okeanidos Street | 19500 | Rest of Attica | Attica |
| Olgas Street | 19014 | Rest of Attica | Attica |
| Olympiados Street | 19015 | Rest of Attica | Attica |
| Olympiados Street | 13461 | Rest of Attica | Attica |
| Olympiados Street | 13344 | Rest of Attica | Attica |
| Olympiakou Street | 19014 | Rest of Attica | Attica |
| Olympias Street | 19015 | Rest of Attica | Attica |